1·A new four-parameter equivalent strain for isotropy damage model is presented.
提出了一种新的用于各向同性损伤模型的四参数等效应变。
2·The high homogeneity and isotropy shown in the cosmic microwave background (CMB) prove that the universe has been in existence for around 15 billion years.
微波背景辐射显示的宇宙高度的均匀性和各向同性说明,宇宙已经存在了约150亿年左右。